Christmas Eve 2005. Eight year old Michelle Harper is the only survivor in a horrific massacre that has left her four siblings decapitated, and her mother slowly dying as her innards ooze out onto the second floor landing, the words SANTA TOOK THEM written in blood on the bedroom wall.

Ten years later, having been released from a psychiatric hospital for children, Michelle disappears, her uncle and his girlfriend found hacked to death with a knife before being decapitated, the words SANTA TOOK THEM once again written in blood on the wall.

Dr. Samantha Loomis had no plans for the holidays, and was hoping to spend the time simply relaxing in her home. That all changes when the police begin asking her questions about Michelle, questions that make it fairly clear that they believe her to be guilty of the recent slayings.

No one in Holly Brook, IL has forgotten the horror that unfolded on Christmas Eve all those years ago, and now, as a terrifying blizzard descends upon the small isolated town, and teens begin disappearing one by one, it looks as if that gruesome night was only the beginning.